It wasn't until two children walking through the North Creek subdivision noticed the woman that someone finally called 911. The 48-year-old woman was then rushed to Shands Jacksonville in critical condition.

So, after Tuesday's accidental injury, car experts want to remind local home mechanics and car enthusiasts to use their car jacks carefully.

The most common mistake when using a jack is placement.

"You lower it 'til it goes underneath the frame, stick your hand underneath you should feel a lip," said Devon Roseboro, a tow truck driver and mechanic with Allen's Tow Service.

Then, after you tighten the jack by hand, make sure it is snug and proceed to use the tire iron.

Always remember to park the car on level ground and put the emergency brake on. If not, the car could fall.

But if you feel uneasy or "don't know what you're doing call a professional," Roseboro said.